Biology and Web Development Quiz

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Questions and Answers

Which programming language is primarily used for styling web pages?

  • CSS (correct)
  • SQL
  • JavaScript
  • Python

SQL is used for client-side scripting in web applications.

False (B)

What is the primary use of JavaScript in web development?

Client-side scripting for web applications

Python is primarily known for ____ programming.

<p>general-purpose</p> Signup and view all the answers

Match the following programming languages with their primary usage:

<p>Python = General-purpose programming JavaScript = Client-side scripting for web applications SQL = Database queries CSS = Styling web pages</p> Signup and view all the answers

Which of the following factors is NOT a cause of population evolution?

<p>Unlimited food supply (C)</p> Signup and view all the answers

A population that is in Hardy-Weinberg Equilibrium is evolving.

<p>False (B)</p> Signup and view all the answers

Name one characteristic that must be present for a population to be considered non-evolving.

<p>Large Population</p> Signup and view all the answers

In a non-evolving population, there is no _______ flow.

<p>gene</p> Signup and view all the answers

Match the following evolutionary concepts with their definitions:

<p>Genetic drift = Random changes in allele frequencies in small populations Natural selection = Process where organisms better adapted to their environment tend to survive Migration = Movement of individuals between populations Non-random mating = Selection of mating partners based on specific traits</p> Signup and view all the answers

Which type of bacteria primarily live in extreme environments?

<p>Both B and C (B)</p> Signup and view all the answers

Eubacteria have a different cell wall structure compared to Archaebacteria.

<p>False (B)</p> Signup and view all the answers

What is the primary function of the flagella in bacteria?

<p>Movement</p> Signup and view all the answers

Bacteria possess __________ for protein synthesis.

<p>ribosomes</p> Signup and view all the answers

Match the following bacteria to their functions or characteristics:

<p>Streptococcus = Causes strep throat E. coli = Helps digest food Streptomyces erythraeus = Produces the antibiotic streptomycin</p> Signup and view all the answers

Which structure in bacteria helps to give them shape and support?

<p>Cell Wall (A)</p> Signup and view all the answers

Bacteria are eukaryotes because they lack membrane-bound organelles.

<p>False (B)</p> Signup and view all the answers

Name one characteristic that differentiates Archaebacteria from Eubacteria.

<p>Different cell wall structures</p> Signup and view all the answers

Which type of natural selection favors individuals with extreme traits over those with intermediate traits?

<p>Disruptive selection (A)</p> Signup and view all the answers

Natural selection guarantees that all traits are equally passed on to the next generation.

<p>False (B)</p> Signup and view all the answers

What is the role of mutation in population genetics?

<p>Mutation introduces new alleles into the gene pool, which can be beneficial and selected for.</p> Signup and view all the answers

Natural selection acts on individuals best adapted to their ______.

<p>environment</p> Signup and view all the answers

Match the following types of selection with their examples:

<p>Stabilizing selection = Human birth weights Directional selection = Giraffe necks Disruptive selection = Rock pocket mice Genetic flow = Immigration and emigration of organisms</p> Signup and view all the answers

Which of the following is NOT a key assumption of the Hardy-Weinberg Equilibrium?

<p>Natural selection is occurring (C)</p> Signup and view all the answers

A population in Hardy-Weinberg Equilibrium shows no change in allele frequencies over time.

<p>True (A)</p> Signup and view all the answers

Name one essential condition for a population to maintain Hardy-Weinberg Equilibrium.

<p>Infinite population size or no mutation or random mating</p> Signup and view all the answers

In a non-evolving population, there is no _______ selection.

<p>natural</p> Signup and view all the answers

Match the following evolutionary concepts with their correct descriptions:

<p>Genetic Drift = Random changes in allele frequencies that occur in small populations Gene Flow = The transfer of alleles or genes from one population to another Mutation = A change in the DNA sequence that can introduce new alleles Natural Selection = The process where organisms better adapted to their environment tend to survive and produce more offspring</p> Signup and view all the answers

What do homologous structures provide evidence for?

<p>A common ancestor (A)</p> Signup and view all the answers

Analogous structures indicate a recent common ancestor among the organisms.

<p>False (B)</p> Signup and view all the answers

What is an example of a vestigial structure found in whales?

<p>Hip bones</p> Signup and view all the answers

Whales are believed to have evolved from organisms that _______ on land.

<p>walked</p> Signup and view all the answers

Match the structures to their definitions:

<p>Homologous Structures = Structures that share a common ancestry Analogous Structures = Structures with similar functions but different origins Vestigial Structures = Remnants of structures that had a function in ancestors</p> Signup and view all the answers

Which of the following categories includes organisms that are known to live in extreme environments?

<p>Archaebacteria (C)</p> Signup and view all the answers

Eubacteria play a significant role in decomposition.

<p>False (B)</p> Signup and view all the answers

What ecological role do fungi primarily serve?

<p>Decomposition</p> Signup and view all the answers

Organisms in the category of _____ are primarily producers that perform photosynthesis.

<p>Plant</p> Signup and view all the answers

Match the following categories of organisms with their examples:

<p>Eubacteria = E. coli Archaebacteria = Methanogens Fungus = Mushrooms Protista = Algae</p> Signup and view all the answers

What is the shape of cocci bacteria?

<p>Sphere (B)</p> Signup and view all the answers

Which organism is an example of a eubacteria?

<p>Escherichia coli (D)</p> Signup and view all the answers

Animals are considered autotrophs.

<p>False (B)</p> Signup and view all the answers

Bacteria can reproduce sexually through binary fission.

<p>False (B)</p> Signup and view all the answers

Name one example of a bacilli bacteria.

<p>Bacillus</p> Signup and view all the answers

What is one common use of archaebacteria in industry?

<p>Food production or cleaning products</p> Signup and view all the answers

The kingdom known as the 'junk drawer' because it contains organisms that don't fit into other categories is the _____ kingdom.

<p>Protista</p> Signup and view all the answers

Bacteria that produce energy using sunlight are called ______.

<p>Photosynthetic Autotrophs</p> Signup and view all the answers

Which category of organisms primarily contributes to gut health?

<p>Eubacteria (D)</p> Signup and view all the answers

Match the following bacterial classifications with their characteristics:

<p>Cocci = Sphere-shaped bacteria Bacilli = Rod-shaped bacteria Spirilla = Spiral-shaped bacteria Heterotrophs = Bacteria that break down other organisms for energy</p> Signup and view all the answers

What do chemosynthetic autotrophs use to generate their energy?

<p>Chemicals (D)</p> Signup and view all the answers

Discontinuing antibiotic treatment before the full prescribed period can allow remaining bacteria to reproduce.

<p>True (A)</p> Signup and view all the answers

What prefix is used to describe bacteria that grow in chains?

<p>Strepto-</p> Signup and view all the answers

Which kingdom is known for being unicellular and having a cell wall made of chitin?

<p>Fungi (C)</p> Signup and view all the answers

All protista are multicellular organisms.

<p>False (B)</p> Signup and view all the answers

What type of nutrition do plants primarily use?

<p>Autotrophic</p> Signup and view all the answers

The cell wall of Eubacteria is primarily made of __________.

<p>peptidoglycan</p> Signup and view all the answers

Match the following kingdoms with their locomotion capabilities:

<p>Eubacteria = Yes, using cilia or flagella Fungi = Some can, others are stationary Plants = No Animals = Yes, using cilia or flagella</p> Signup and view all the answers

Flashcards

Eubacteria

Good bacteria, often found in the gut, used in food production like yogurt.

Archaebacteria

Extremophile bacteria, living in harsh environments like high heat or salt.

Protista

A diverse group of organisms, doesn't fit neatly into other kingdoms. Includes diatoms and algae.

Fungus

Organisms that break down dead material. Examples include mushrooms and yeast.

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Plant

Organisms that make their own food through photosynthesis.

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Animal

Organisms that consume other organisms for energy.

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Ecological Importance

The role of an organism in its environment, and how it interacts with other living things.

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Non-evolving population

A population where allele frequencies do not change over time.

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Hardy-Weinberg equilibrium

A population not evolving; allele frequencies remain constant.

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Large population

A large population is needed for no genetic drift.

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No mutations

No new alleles are introduced.

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No gene flow

No movement of alleles between populations.

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No natural selection

All alleles are equally successful at reproduction.

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No migration

No alleles entering or leaving the population.

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Population evolution

Change in allele frequencies in a population over time.

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5 factors causing evolution

Non-random mating, natural selection, migration, genetic drift, genetic flow.

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Non-random mating

Individuals mate with certain traits more often.

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Natural selection

Certain traits make reproduction more successful.

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Migration

The movement of individuals between populations.

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Genetic drift

Random chance events affecting allele frequencies.

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Genetic flow

The movement of genes between populations.

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Which factor is NOT controlled in bird scenario?

Mutations

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Archaebacteria

A kingdom of bacteria found in extreme environments, with unique cell wall structures, lipids, and genetic material compared to Eubacteria.

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Eubacteria

A kingdom that includes all other bacteria; found in diverse habitats and have diverse forms of metabolism.

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Plasma Membrane

The outer boundary of a bacterial cell that controls what enters and exits the cell.

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Attractiveness

The traits that make an organism more appealing to a mate, influencing their survival and genetic health.

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Cell Wall

Protective layer surrounding the plasma membrane, providing shape and support to the bacterial cell.

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Capsule

A sticky outer layer found in some bacteria, believed to help them attach to hosts.

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Mutation

Changes in DNA that introduce new alleles into a gene pool.

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Flagella

Tail-like appendages used by some bacteria for movement.

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Genetic Flow

The movement of genes between populations through immigration and emigration.

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Natural Selection

The process where organisms better adapted to their environment are more likely to survive and reproduce.

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Circular DNA (Plasmid)

The genetic material of bacteria, organized as a single circular chromosome, unlike in eukaryotes.

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Selective Pressures

Factors in the environment that influence which traits are beneficial. Examples: predators, disease, and environmental change.

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Methanogens

A type of Archaebacteria that produce methane gas in oxygen-free environments.

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Extreme Halophiles

A type of Archaebacteria that live in highly salty environments.

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Stabilizing Selection

Natural selection favoring average traits in a population, like human birth weight.

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Directional Selection

Natural selection favoring one extreme trait, like antibiotic resistance in bacteria.

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Thermoacidophiles

A type of Archaebacteria that thrive in hot and acidic environments.

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Prokaryote

A cell lacking membrane-bound organelles like a nucleus, mitochondria, or chloroplasts.

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Disruptive Selection

Natural selection favoring both extreme traits, but not the average.

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Ribosomes

Cellular structures involved in protein synthesis.

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Pili

Projections used by bacteria to exchange genetic material.

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Bacterial Shapes

Bacteria are classified into cocci (sphere), bacilli (rod), and spirilla (spiral) based on their shape.

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Cocci

Sphere-shaped bacteria, often found in pairs, chains or clusters.

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Bacilli

Rod-shaped bacteria, often long and thin.

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Spirilla

Spiral-shaped bacteria.

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Bacterial Grouping

Prefixes (like 'diplo-','strepto-','staphylo-') describe how bacteria come together in groups.

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Heterotrophs (bacteria)

Bacteria that gain energy by consuming other organisms.

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Photosynthetic Autotrophs

Bacteria that make their own food using sunlight.

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Chemosynthetic Autotrophs

Bacteria that make their own food using chemicals.

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Binary Fission

Asexual reproduction method in bacteria, resulting in two identical daughter cells.

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Bacterial Reproduction rate

Bacteria can reproduce very quickly every ~20 minutes under ideal conditions.

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Incomplete Treatment

If antibiotic treatment is stopped too early, the remaining bacteria can continue reproducing.

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Homologous Structures

Same structures in different species, showing a common ancestor.

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Analogous Structures

Structures with similar function, but different structure, not showing common ancestry.

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Vestigial Structures

Remnants of structures that had a function in an ancestor, but not in the descendant.

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Whale Evolution

Whales' evolution from land-dwelling organisms, evidenced by vestigial hip bones and breathing air.

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DNA/Molecular Evidence

Similar DNA, RNA, and protein sequences in closely related organisms, supporting common ancestry.

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DNA Sequence Differences

Identifying the differences in the DNA base sequences among organisms.

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Eubacteria Cell Type

Prokaryotic

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Archaebacteria Cell Type

Prokaryotic

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Protista Cell Type

Eukaryotic

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Fungi Cell Type

Eukaryotic

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Plant Cell Type

Eukaryotic

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Animal Cell Type

Eukaryotic

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Eubacteria Cell Wall Material

Peptidoglycan

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Archaebacteria Cell Wall Material

Some have cell walls, made of various materials

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Protista Cell Wall Material

Some have cell walls, made of various materials

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Fungi Cell Wall Material

Chitin

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Plant Cell Wall Material

Cellulose

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Animal Cell Wall

Absent

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Eubacteria Nutrition

Autotrophic or heterotrophic

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Archaebacteria Nutrition

Autotrophic or heterotrophic

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Protista Nutrition

Autotrophic or heterotrophic

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Fungi Nutrition

Heterotrophic

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Plant Nutrition

Autotrophic

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Animal Nutrition

Heterotrophic

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